US379153A - Oar-lock - Google Patents

Description

(No Model.)

L. P. 000K.

DAR LOOK.

Patented Mar. 6, 1888.

Inventor.

2/118 fl''forneyS.

Wjifnesses.

N4 PETERS. Pnmnm m Washington as.

UNITED STATES PATENT OFFICE.

LEWIS P. COOK, OF HAWLEY, ASSIGNOR OF ONEHALF TO GEORGE A. OLEARWATER, OF SGRANTON, PENNSYLVANIA.

OAR-LOCK.

SPECIFICATION forming part of Letters Patent No. 379,153, dated March 6, 1888.

Application filed November 19, 1887. Serial No. 155,620.

Too/[Z whom it may concern.-

Be it known that l, LEWIS P. CoK,of Hawley, in the county of Wayne and State of Pen nsylvania, have invented certain new and useful Improvements in Oar-Locks; and I do hereby declare the following to bea full, clear, and exact description of the same, reference being had to the accompanying drawings, forminga part of this specification, and to the figures and letters of reference marked thereon.

It has heretofore been found that self-feathering oar-locks were expensive to make, and in practical operation they were found to be inefficient by reason of the distance of the pivotal point from the oar, causing the loss of very much of the power of the operator without any return, either in case of movement or rapidity of propulsion, and, further, they have been universally so constructed as to adapt them for co-operation with one size of oar only, and usually only with an oar prepared especially for the purpose.

It is the object of my present invention. to

overcome the above-named objections and to produce an oar or row lock that will be cheap and efl'ective with the minimum loss of power, and one adapted to cooperate with oars of various sizes and shapes, such as are ordinarily used; and to this end the said invention consists in certain novel details of construction and combinations and arrangements of parts, as will hereinafter be more fully described, and

' pointed out particularly in the claims at the end of this specification.

In the accompanying drawings, Figure 1 is a perspective view of an oar-lock and oar constructed in accordance with my invention, the our being shown in dotted lines. Fig. 2 is a sectional view of the same. Figs. 3 and 4 are views of modifications, showing, respectively, a different form of screwthreaded nut and a different manner of pivotally connecting the nut to the oar.

Similar letters of reference in the several figures indicate the same parts.

The standard orsupportAis preferably,and

for the sake of cheapness, a round rod of iron,

its upper end, a, being screwthreaded and bent into a plane at right angles or horizontal to the lower portion, which enters the socket (No model.)

in the gunwale of the boat. The end a is such a distance above the gunwale as to leave sufficient room for the swing of the oar, the intermediate porlion of the standard being preferably cnrved outward, as shown clearly in Fig. 2. Sorewing on the end a of the standard is a nut, B, having a perforation longitudinally through one of its sides, in which the pin 1), carrying the oar, pivots.

The clamp O, for holding the oar, is of metal, its upper end being bifurcated and provided with serrations or projections and its lower end with a set-screw, c, which is screwed up when the oar is properly adjusted in position. The arms or bifurcated portion of the clamp extend on each side of the nut B and engage the ends of the pin 12.

In applying or securing the oarin position, it is placed in the clamp andthe blade brought to perpendicular position when the oar is against the standard, and so that when swung outward to its farthest extent it will notquite reach a horizontal plane. If the blade turns beyond the horizontal, the nut must be set farther back on the standard and the oar-blade turned in the clamp accordingly, and vice versa. When thus adj usted, the oar-blade will automatically assume a vertical position when inclined.

In the modification shown in Fig. 3 the nut for application to the standard has studs 6 thereon, upon which the oar swings, and in Fig. 4, instead of employing aclamp, Iemploy simply a U-shaped piece of metal, the base of which is confined in the nut and the arms passed through perforations in the oar, nuts or pins being applied to the ends to preventtheir withdrawal.

During the fore and aft movements of the oar it pivots in the socket in the gunwale of the boat, as in the ordinary oar-lock,and as the turning or feathering of the oar is automatically accomplished without effort on the part of the operator I employ a loose or rolling handle on the inner end of the oar for him to grasp,

as shown in Fig. 1, wherein G represents the handle, and H the end of the oar passing through it. This construction allows the oar itself to rotate in either direction withoutslipping in the operators hands or causing him to bend his wrists, as would be the case if he grasped the solid portion of the car or an ordinary oar were employed.

Although I have particularly described the several constituent elements of my invention, I do not wish to be limited to their exact construction, as it will be obvious to those skilled in the art to which this invention appertains that it may be modified considerably without departing from the spirit of my invention-- for instance, other well-known forms of adj ustable connections between the oar and standard may be used and the loose handle on the end of the oar may be entirely dispensed with.

Having thus described my invention,what I claim as new is 1. In an oar-lock, the combinatiomwith the standard extending over the top of the oar, of a pivotal support for the oar connected to the standard, said connection being longitudinally adjustable on the overhanging portion of the standard, substantially as described.

2. In an oar-lock, the combination,with the standard extending over the top of the oar and an adjustable nut thereon, of a pivoted connection between said nut and oar, whereby the latter is permitted a swinging movement toward and from the standard and may be adjusted nearer to or farther from the end of the same, substantially as described.

3. In an oar-lock, the combination,with the standard extending over the top of the oar, screw-threaded at its end, of a nut screwing thereon, and a pivotal connection between said nut and oar, substantially as described.

4. In an oar-lock, the combinatiomwith the standard extending over the top of the ear, screw-threaded at its end, and a nut co-operating with said screw-threaded portion, of a clamp removably secured to the oar,having the bifurcated upper portion, the arms of which extend on either side of the nut and are conneeted thereto by a pivotal connection, substantially as described.

5. In an oar-lock, the combination,with the standard extending over the top of the oar, screw-threaded at its end, and a nut cooperating with said screw-threaded portion, of a clam p extending partially around the oar,provided with holding projections and a set-screw, as described, and a pivotal connection between the clamp and nut, as set forth.

6. The combination, with an automatically feathering oar-lock, of an oar having an independentrotatablehandle thereo'n,substantially as described.

Lnwis r. COOK.

\Vitnesses:

WM. 11. ALT, WM. A. VAN Sienna.

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